10
CVE-2020-10188
- EPSS 74.34%
- Veröffentlicht 06.03.2020 15:15:14
- Zuletzt bearbeitet 21.01.2026 02:15:47
- Erkennungen
utility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute arbitrary code via short writes or urgent data, because of a buffer overflow involving the netclear and nextitem functions.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Netkit Telnet Project ≫ Netkit Telnet Version <= 0.17
Fedoraproject ≫ Fedora Version 30
Fedoraproject ≫ Fedora Version 31
Fedoraproject ≫ Fedora Version 32
Debian ≫ Debian Linux Version 8.0
Debian ≫ Debian Linux Version 9.0
Oracle ≫ Communications Performance Intelligence Center Version 10.4.0.2
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 74.34% | 0.994 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| NIST | 9.8 | 3.9 | 5.9 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
| NIST | 10 | 10 | 10 |
AV:N/AC:L/Au:N/C:C/I:C/A:C
|
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
https://www.oracle.com/security-alerts/cpuApr2021.html
https://appgateresearch.blogspot.com/2020/02/bravestarr-fedora-31-netkit-telnetd_28.html
https://github.com/krb5/krb5-appl/blob/d00cd671dfe945791b33d4f1f6a5c57ae1667ef8/telnet/telnetd/utility.c#L205-L216
https://lists.debian.org/debian-lts-announce/2020/05/msg00012.html
https://lists.debian.org/debian-lts-announce/2020/08/msg00038.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7FMTRRQTYKWZD2GMXX3GLZV46OLPCLVK/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HLU6FL24BSQQEB2SJC26NLJ2MANQDA7M/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3VJ6V2Z3JRNJOBVHSOPMAC76PSSKG6A/
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-telnetd-EFJrEzPx
https://www.arista.com/en/support/advisories-notices/security-advisories/10702-security-advisory-48
http://www.openwall.com/lists/oss-security/2026/01/20/8